How to Price an Electrical Rewire UK: 2026 Electrician's Estimating Guide
Stop guessing labour hours and getting burnt by unforeseen plastering costs. Here is the exact pricing formula top UK electrical contractors use to protect 50%+ gross margins.
Rewires are the most profitable domestic job in the electrical trade—or the most catastrophic. Most contractors underquote because they estimate purely based on point count (e.g. "£65 per double socket") and completely fail to factor in occupied home friction, chasing hard brickwork, sub-floor access, and daily temporary power restoration.
1. 2026 UK Average Rewire Pricing Matrix
| Property Type | Unoccupied (Empty) | Occupied (Furnished) | Average Labour Days | Target Net Margin |
|---|---|---|---|---|
| 2-Bed Terraced House / Flat | £3,400 – £4,200 | £4,200 – £5,200 | 3 – 4 days (2-man team) | £1,800 – £2,400 |
| 3-Bed Semi-Detached House | £4,500 – £5,500 | £5,500 – £6,800 | 4 – 5 days (2-man team) | £2,500 – £3,400 |
| 4-Bed Detached House | £6,200 – £7,500 | £7,500 – £9,800 | 6 – 8 days (2-man team) | £3,600 – £4,800 |
| 5+ Bed Period / Victorian Property | £8,500 – £12,000 | £11,000 – £16,000+ | 8 – 12 days (2-3 man team) | £5,000 – £7,500+ |
2. The 4-Part Rewire Estimating Formula
To eliminate guesswork, top electrical contracting firms use a modular four-part pricing formula:
Formula: Total Price = (Labour + Materials + Contingency + Margin)
1. Direct Labour Cost: Calculate total pair-hours. A standard 3-bed semi requires 80 total man-hours (two sparks for 5 full days). At an internal wage cost of £25–£35/hour per engineer, base labour is £2,000–£2,800.
2. Wholesale Materials: Consumer unit (18th edition RCBO + SPD), 6242Y twin & earth drums (1.5mm, 2.5mm, 6.0mm, 10.0mm), metal back boxes, faceplates, smoke & heat alarms, bonding conductors, and containment. Typical wholesale cost for a 3-bed is £900 to £1,400.
3. Property Friction Contingency: Add 20% for occupied properties (moving furniture, carpet lifting, dust sheets, temporary power). Add 15% if property has solid concrete ground floors requiring surface trunking or floor routing.
4. Gross Profit Margin Markup: Apply a minimum 45%–55% markup on cost to cover business overhead, vehicle fuel, tools depreciation, NICEIC certificate fees, and net profit.
We deploy dedicated rewire landing pages and high-intent Google search campaigns that attract serious homeowners looking for quality rewires, not cheap repairs.
3. The "Good, Better, Best" Rewire Quote Strategy
When contractors present a single take-it-or-leave-it figure (e.g. "Full rewire: £5,500 inc VAT"), the customer's natural reaction is to compare that single number with another contractor’s single number.
Instead, present three distinct tiers inside your digital quote software (such as Tradify or ServiceM8):
- Tier 1: Essential Rewire (£5,200): Standard white moulded click accessories, 18th edition RCBO board, interconnected mains smoke alarms, Part P certification.
- Tier 2: Contemporary Living (£6,400): Brushed chrome or matte black screwless sockets with integrated USB-C ports, LED downlight zones in kitchen and bathrooms, smart app-controlled heating thermostats.
- Tier 3: Smart Architectural (£8,200): Full smart home switching (Lutron or Shelly), CAT6 data cabling to all bedrooms, external EV smart charger pre-wire, and professional dust-free plaster patch filling.
Over 60% of affluent homeowners choose Tier 2 or Tier 3. By simply giving the customer choice, your average rewire revenue increases by £1,200 to £2,500 per job with zero extra marketing spend.
